Returns a new query that will return related entities nested within its results.
The Expand method allows you to identify related entities, via navigation property names such
that a graph of entities may be retrieved with a single request. Any filtering occurs before
the results are 'expanded'.

Returns a new query that will return related entities nested within its results.
The Expand method allows you to identify related entities, via navigation property names such
that a graph of entities may be retrieved with a single request. Any filtering occurs before
the results are 'expanded'.